2011.09.16 22:53 "[Tiff] Write Exif data to Tiff file", by DonM

2011.09.17 22:31 "Re: [Tiff] Write Exif data to Tiff file", by Bob Friesenhahn

On Sep 17, 2011, at 10:00 AM, tiff-request@lists.maptools.org wrote:

You might want to check out OpenImageIO (www.openimageio.org). Even if you don't want to use it directly (though it's a lot easier than using libtiff directly), it's a good example of how to use libtiff, including embedding Exif data in the TIFF files. The code is all BSD licensed, so feel free to copy what you need into other applications.

This is the comment I see in the file at
https://github.com/OpenImageIO/oiio/blob/master/src/tiff.imageio/tiffoutput.cpp:

// FIXME -- we don't currently support writing of EXIF fields. TIFF // in theory allows it, using a custom IFD directory, but at

// present, it appears that libtiff only supports reading custom // IFD's, not writing them.

Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/